I did see that truck, not sure it's really a truck any more, but it does look nice.
They threw a lot of money at that project to make it happen and look so nice.
In the end though think about what you want the truck to do, and what you'll use it for.
I bet you can put a 6BT in a 46 Chevy truck, but is it a good idea considering the effort, and time? Will you gain enough satisfaction when it's done to make it worth the effort?
Grigg